Tack button



July 1, 1941. F. G. PuRlN-roN TACK BUTTON Filed April 15. 1939 3mm/m;

Patented July 1, 1941 1 Claim.

My invention relates to new and useful improvements in tack buttons, and has for an object to provide a solid metal button that may be made out of aluminum, on a header, or may be die-cast of any suitable metal alloy. 'Ihe metal, although relatively thin, is so distributed that the button head will not be deformed in capping or in the attaching operation and is strong enough to provide the usual service to which a button of this type is subjected.

A further object of the invention is to preferably die-cast a button which is relatively thin and light in weight to thus save metal, cost of manufacture and shipping, but at the same time so construct the button that the cap will be Well supported and the hub will be strong enough to withstand the strain placed on the same during the capping or button-attaching operation.

A further object of the invention is to form, either on a header or die-cast machine, a button head with internal ribs that will not only strengthen the button back and support the cap, but at the same time by having the ribs concealed give an appearance of a solid metal button.

Still another object of the invention is to provide a die-cast metal button wherein the hub is provided with a bore to receive the fastening means, which latter is not to be deflected or mutilated, as is the conventional type of fastener, thus making it possible to have the upper end of the hub solid (with the exception of the bore) and overcoming the necessity of providing the space for an anchor or vise or even an anvil for the button head.

Still another object of the invention is to provide a button that may be manufactured at an exceedingly low cost either on the header or by die-casting, comprising only one piece plus the usual cap on which will be insignia, a trademark, or fanciful design.

With these and other objects in view, the invention consists in certain new and novel features and combination of parts, as will be hereinafter more fully explained and pointed out in the claim.

Referring now to the drawing showing a preferred embodiment,

Fig. 1 is a top plan View of my improved button back or shell on an enlarged scale;

Fig. 2 is a vertical section thereof;

Fig. 3 is a bottom plan view thereof;

Fig. 4 is a top plan view with the cap attached;

Fig. 5 is a vertical sectional view showing the button as attached to its cloth; and

Fig. 6 is a detail of the tack fastener.

Referring now more particularly to the several views and for the moment to Figs. 1, 2', and 3, there is shown a tack button of aluminum made on a headen or an alloy metal button made by die-casting, consisting of the relatively thick hub I, the back 2, the outwardly extending rim 3, and a plurality of integral radiating ribs 4, which support the back, the rim, and cap, as will be readily seen.

The upper edges of the ribs are coextensive with the upper marginal edge of the rim and just slightly below the upper surface 5 of the hub, so that when the cap 6, later to be referred to, is closed on the button back, it will be supported centrally by an area 5 of solid die-cast metal, as it is here that the pressure in the capiping or attaching will be the greatest.

It will be understood that through the hub extends the bore 1, but inasmuch as the diameter of the bore is so relatively small, the lack of support centrally of the surface 5 of the hub is not an important factor.

The construction so far outlined provides the necessary strength in the head with a minimum amount of die-cast metal in the back and rim.

A cap 6, as shown in Figs. 4 and 5, is to be secured to the button back, and this cap may have any desired insignia 8 thereon to designate a trade-mark or brand, or it may have a fanciful design, as is well understood.

The cap is supported centrally by the upper surface 5 of the hub and substantially by the rim and the ribs 4.

To attach the button to a garment 9, there is provided a luted tack fastener I0 having the prong II and the head I2, which prong is to be driven through the cloth 9 up into the bore 1 when the button is on the attaching station (not shown) of a button-attaching machine.

The fiuted prong I I is slightly greater in diameter than the bore of the hub I and holds the button head in place by gripping the side Walls of the bore, thus making it unnecessary to provide a chamber in the button to hold a die or anchor e or anvil.

From the foregoing, it will be seen that I have provided an inexpensive button head, which may be easily die-cast, using but a minimum amount of metal, or it may be made on a headerJ The button head consists of but two parts, the button back proper and the cap, but at the same time the cap is well supported to withstand the closing or capping pressure, and likewise the button back proper, although made of relatively thin metal, is well strengthened by the radiating ribs. It is also readily apparent that by providing a relatively thick hub and a relatively thin back With its supporting ribs, the button may go through the attaching operation without any danger of the button head being deformed when the tack is driven through the cloth and into the bore of the button head.

Finally, the construction has the advantage of having the reinforced ribs concealed, so that the button, even before or after it is attached, will f- 2,247,522 rv Y A the upper edges of the ribs to form a central suphave the same appearance as the standard b1`it` tons assembled out of sheet metal parts.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

A metal button head of the tack-fastening type including a relatively thick central hub, a relaport for a cap, a cap provided With insignia thereon fitting about said rim and also supported centrally by the aforementioned upper edge of said hub and held against being depressed by the upper edges of said ribs, and the hub being provided with a central bore. v

' FORREST G. PURINTON. 

